After her sister's banishment, Celestia realized it was her failure that led to her sister's fall, and she vowed to build a better nation that her sister would have wanted. Here, Nightmare Moon is neither myth nor legend; everyone is taught about what truly happened to Princess Luna, and that the two are one and the same. Through her millennia of atonement, Celestia upholds her sister's visions for a better Equestria, reviving her lost legacy.

Now, at the 1000th summer sun celebration, the town of Ponyville is ready. Eager to witness the historic event, everyone's there to show their love and appreciation as they welcome the Princess of the Night's return. Would Nightmare Moon still seek retribution and bring nighttime eternal? Or would she reunite with her long-lost sister, graciously returning to her throne? It doesn't matter to Celestia. She just wants to see her sister once again.